ToC is most of the times accurate about if something has potential to break out (Sket Dance past the first rankings, Kimetsu, World Trigger and Actage and Jujutsu are fantastic examples of this, and probably Chainsawman, Saiki Kusuo for gag standards, Nisekoi, MHA, BC and others where the success was not a sure thing) or at least do enough to survive for 3 or more volumes (Double Arts, Koisome Momiji, Pajama na Kanojo, Kurogane, Magico, Enigma, Dance Club, Kagami no Kuni no Harisugawa and others)
You can say it misfired on Hinomaru Zumou, but early Vol 1 and 2 sales showed some potential coming from a complete newbie mangaka with no fanbase up to that point. I would say TOC did the purpose there.